GE MEDICAL SYSTEMS
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LOGIQ 400 SERVICE MANUAL
FUNCTIONAL CHECKS
4–34
REV 6
4–3–3 Utility Menu (continued)
(K)
MONITOR ADJUSTMENT (continued)
Procedure for Adjusting Monitor
1. Input the item number according to the brightness of Exam room.
The Gray Scale Bar for adjustment will be displayed on the CRT monitor screen as shown in
ILLUSTRATION 4–26.
GRAY SCALE BAR
ILLUSTRATION 4–26
2. Open the front door at the lower center of the Monitor Assy by pushing the top center of the door.
3. Move Contrast and Brightness slide potentiometers rightwards to the maximum to increase both settings.
4. Decrease brightness by moving Brightness slide potentiometer leftwards by degrees until “B” in the gray
scale bar is not visible.
5. Decrease contrast by moving Contrast slide potentiometer leftwards by degrees until “A” in the gray scale bar
is not visible.
6. Move Brightness slide potentiometer rightwards to the maximum again.
7. Decrease brightness by moving Brightness slide potentiometer leftwards by degrees until “C” in the gray
scale bar is not visible.
